Now that you've had a taste of the Crushridge ogres, I want you to really bloody their noses...
Go into the Ruins of Alterac and seek out the Crushridge Warmongers. I want you to cut down a good number of them - that's the only way those brutes will learn to keep their distance from Alliance territory.
Very good. Here is your reward.
And when you were hunting those Warmongers, how did Alterac city look? It's in bad shape I would guess. Ogres are not known for their cleanliness.
Thankfully, your efforts will help keep them away from Southshore.